27-Hydroxycholesterol induces invasion and migration of breast cancer cells by increasing MMP9 and generating EMT through activation of STAT-3.
Environ Toxicol Pharmacol
; 51: 1-8, 2017 Apr.
Article
en En
| MEDLINE
| ID: mdl-28257824
Breast carcinoma plays a vital role in the reasons of global women's death. ER-related invasion and migration play an important part in the development and prognosis of breast cancer. Here, we found that 27-Hydroxycholesterol (27HC) could induce epithelial-mesenchymal transition (EMT) and increase the expression of the matrix metalloproteinase 9 (MMP9) at mRNA level and the active form. Meanwhile, interestingly, we found 27HC activated signal transducer and activator of transcription 3 (STAT-3) in ER positive cells except activation of ER signaling. Furthermore, inhibition of STAT-3 by siRNA attenuated the 27HC-induced improvement of MMP9 and decreased the invasion and migration ability in MCF7 and T47D cells. In addition, 27HC could also promote MMP9, vimentin and active STAT-3 in the ER negative cells MDA-MB-231. All these results not only raise a mechanism whereby 27HC enhances the invasion and metastasis, but also is helpful to realize 27HC as a potential endogenous detrimental factor in breast tumor patients.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Movimiento Celular
/
Metaloproteinasa 9 de la Matriz
/
Factor de Transcripción STAT3
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Transición Epitelial-Mesenquimal
/
Hidroxicolesteroles
Tipo de estudio:
Prognostic_studies
Límite:
Humans
Idioma:
En
Revista:
Environ Toxicol Pharmacol
Año:
2017
Tipo del documento:
Article
País de afiliación:
China
Pais de publicación:
Países Bajos